Microsoft Security is seeking a Senior Security Assurance Engineer to join their M365 Cloud Security – Security Architecture Lifecycle Team (SALTed). This role is crucial in Microsoft's mission to make the world safer through comprehensive security solutions. The position focuses on protecting M365's widely-used productivity applications and services, which impact billions of users globally. You'll work with cutting-edge security challenges, drive secure engineering practices, and help shape the future of security at Microsoft. The role offers a dynamic environment with opportunities to work on AI security, collaborate across teams, and influence security best practices. Microsoft provides a growth-minded culture, comprehensive benefits, and the chance to work on meaningful security challenges at a global scale. The position offers hybrid work flexibility with up to 50% work from home options and involves 0-25% travel.